WHAT HAPPENED: The second time the train was stopped, gunmen abducted some 40 migrants, including at least 10 women and one child. Some victims escaped and reached a migrant shelter, but most disappeared without a trace.

WHY IT’S OUTRAGEOUS: Mexico has become notorious for its violence against foreign migrants in transit. The most horrific example is the 72 migrants found shot to death in an August massacre blamed on the Zetas drug gang.